When you replace components in an assembly, the Missing Entities pop-up toolbar helps you to navigate through existing mates as you replace mate references.
From the pop-up toolbar, you can:
- Show the replacement part alone, show the replacement part with related parts, or show the entire assembly.
- Undo selections and operations.
- Delete mates.
- Skip mates.
- Toggle mate alignments.
To access the Missing Entities pop-up toolbar:
In the Replace Components PropertyManager, under Options, select Re-attach mates, and then click 
.
The
Mated Entities PropertyManager appears. Additionally, a window shows the original component with the missing mate entity highlighted, and the Missing Entities pop-up toolbar appears.
| Isolate |
Controls which components are visible in the graphics area, to help you focus on the missing mate entities. Click Isolate and select:
|
 Replacement Part Only
|
Shows only the component you are inserting.
|
|
 Replacement and Mated Parts
|
Shows the component you are inserting, plus components that are mated to the part you are replacing.
|
|
 Entire Assembly
|
Shows all visible components in the assembly.
|
|
 Undo |
Undoes the previous action. |
 Delete Mates |
Deletes the selected mate. |
 Next Reference |
Selects the next mate entity in the list without taking action on the current entity. |
 Flip Mate Alignment |
Toggles the alignment of the mate. |